Send 1000s of Emails Without Timeout

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using NewsletterService.Classes;

namespace NewsletterService
{
    class Program
    {
        private static DataTable MemberTable = new DataTable();
        private static string subject = "";
        protected static string body = "";
        protected static string smtp = "";
        protected static string senderEmail = "";
        protected static bool sendViaSql = false;

        static void Main(string[] args)
        {
            //build the datatable
            MemberTable.Columns.Add("Id", typeof(int));
            MemberTable.Columns.Add("EmailAddress", typeof(string));
            MemberTable.Columns.Add("Body", typeof(string));

            subject = args[0];
            body = args[1];
            smtp = args[2];
            senderEmail = args[3];
            sendViaSql = Convert.ToBoolean(args[4]);
            
            //get members from database
            DataTable members = Classes.EmailUtility.GetEmails();
            foreach (DataRow row in members.Rows)
            {
                DataRow memberRow = MemberTable.NewRow();
                memberRow["Id"] = row["Id"];
                memberRow["EmailAddress"] = row["Email"];
                memberRow["Body"] = body;
                MemberTable.Rows.Add(memberRow);
            }

            System.Web.Mail.MailMessage msg = new System.Web.Mail.MailMessage();

            msg.Subject = subject;
            msg.Body = body;
            msg.From = senderEmail;
            msg.BodyFormat = System.Web.Mail.MailFormat.Html;

            foreach (DataRow row in MemberTable.Rows)
            {
                try
                {
                    msg.To = row["EmailAddress"].ToString();
                    if (sendViaSql) //send through SQL Server
                    {
                        EmailUtility.SendEmail(msg.To, msg.Body, msg.Subject);
                    }
                    else
                    {
                        //send through via SMTP Server
                        System.Web.Mail.SmtpMail.SmtpServer = smtp;
                        System.Web.Mail.SmtpMail.Send(msg);
                    }
                }
                catch { }
            }
        }
    }
}